Hammad Memon was charged with murder as a 14-year-old. Now 16, he became the subject of a national manhunt that ended Friday in Dallas.

Facing trial for the deadly shooting of a young classmate at Discovery Middle School, Memon had been allowed to live at home with his parents for nearly t two years. But Madison police this week, tipped that Memon may have received a passport from Pakistan, couldn't find him in the Madison area.

The search, with the help of several police agencies and the FBI, ended late Friday with a foot chase in Dallas, according to Madison County Prosecutor Tim Gann.

Gann said authorities believed Memon received a Pakistani passport in the mail at his family's Madison home Wednesday morning and then fled with his mother, Safia Memon, to avoid prosecution.

The Memons were found in downtown Dallas after law enforcement officials pinged the mother's cell phone, Gann said, with the FBI lending technical assistance. They were able to track the Memons through Lousiana and into Dallas.

"There is no question in my mind they were fleeing and planning on leaving the country," Gann said. "After all the evidence that has been uncovered there is no question. I think they were looking to get on an airplane back to Pakistan."

Gann said Memon ran four blocks and was caught a short time later hiding in a bathroom. Gann said Memon, who is a Pakistani citizen, and his mother had in their possession Pakistani passports and a large amount of cash. Memon's six-year-old sister was also with them and she was turned over to Texas-based relatives after her mother's arrest.

Memon and his mother were taken to the Dallas Police Department. They will be returned to Madison County, but Gann said he didn't know when that would occur. Gann said he will ask the court not to grant bond for Memon in order to keep him in jail until his trial date.

Memon is set to go to trial June 18 on charges he killed 14-year-old Todd Brown by shooting him in the back of the head in a crowded hallway at Discovery Middle School in Madison.

Memon was also 14 at the time of the shooting, but prosecutors asked and a judge agreed that he should be tried as an adult. Memon's attorney has argued that Memon was suffering from serious depression at the time of the shooting and should be hospitalized rather than placed in an adult jail.

As a condition of Memon's bond, he had to surrender his U.S. passport and was not supposed to leave the country. He was allowed to leave the state as long as he was with his parents, Gann said at an afternoon press conference Friday. But Gann said authorities became concerned because they believed he had received a passport from Pakistan.

The national search began with a tip from a delivery driver, who told Madison police that Memon had received a package Wednesday from the Pakistani Embassy.

Gann said Madison police soon discovered Memon was no longer at home and contacted local, state and federal authorities to help find him.

Memon and his mother are suspected of fleeing after the package was received. Memon's attorney Bruce Gardner said Memon's father told him Friday afternoon that he had no idea his son had received anything from the Pakistani government.

Gann said Safia Memon will face charges of hindering a murder prosecution. Hindering a prosecution is a Class C felony. If convicted, the felony carries a sentencing range of a year to 10 years.

After a July 2010 hearing, District Court Judge Lynn Sherrod had ruled that Memon was competent to stand trial as an adult. Both the Alabama Court of Criminal Appeals and the Alabama Supreme Court rejected Gardner's argument that Memon should not be tried as an adult.

Gann said Friday's arrest was a reflection of outstanding work by the Madison Police Department and other agencies. "It's real testament to the type of law enforcement we have in the county and the cooperation we've had nationwide has been amazing."

Gann said his office had spoken to Todd Brown's mother Friday.

"She was concerned about the events and I think she was hopeful of the result we got," Gann said. "I think she's probably relieved right now that he is back in custody and will have to stand trial."